1
GATE EE 2014 Set 2
+2
-0.6
Assuming the diodes to be ideal in the figure, for the output to be clipped, the input voltage $${V_i}$$ must be outside the range
A
$$-1V$$ to $$-2V$$
B
$$-2V$$ to $$-4V$$
C
$$+1V$$ to $$-2V$$
D
$$+2V$$ to $$-4V$$
2
GATE EE 2013
+2
-0.6
In the circuit shown below, the knee current of the ideal Zener diode is $$10$$ $$mA.$$ To maintain $$5 V$$ across $${R_L}$$, the minimum value of $${R_L}$$ in $$\Omega$$ and the minimum power rating of the Zener diode in $$mW$$ respectively are
A
$$125$$ and $$125$$
B
$$125$$ and $$250$$
C
$$250$$ and $$125$$
D
$$250$$ and $$250$$
3
GATE EE 2013
+2
-0.6
A voltage $$1000\sin \omega t$$ Volts is applied across $$YZ.$$ Assuming ideal diodes, the voltage measured across $$WX$$ in Volts is
A
$$\sin \omega t$$
B
$$\left( {\sin \omega t + \left| {\sin \omega t} \right|} \right)/2$$
C
$$\left( {\sin \omega t - \left| {\sin \omega t} \right|} \right)/2$$
D
$$0$$ for all $$t$$
4
GATE EE 2011
+2
-0.6
A clipper Circuit is shown below

Assuming forward voltage drops of the diodes to be $$0.7V,$$ the input-output transfer characteristics of the circuit is

A
B
C
D
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